Promo Items Banned From Tournaments

[Trsevener]

Good Day, Munchkinics:

I had something happen at this past GenCon that I would like to ask about. While playing in a preliminary round of the Munchkin World Cup, I was told all promo items would be useable. During a particularly heated combat early in the card I attempted to use a bookmark. I believed I was using it correctly, but my opponents were not familiar with this item. To be fair we called a friendly MIB in to settle the dispute. When I showed the MIB the bookmark I was going to activate, he informed me this particular item had been banned from tournament use.

Now, I have no problem with this ruling. I know this MIB and have been in events he has run before, so I know he knows the rules and was not just yanking my chain. I was satisfied with his answer and explaination why, we went on about the game, and I proceeded to win anyway in an extremely satisfying manner (but that is another story;).

So here come the questions: what promo items have been banned from tournaments? Is there a list somewhere? As I stated, I have no problem with this instance and now know about this item, but are there others that should be avoided? What about promo items made under european licenses, like Pegasus and Q-Workshop, in U.S. tournaments and vice versa?

As always, all help is greatly appreciated.